Lantern



W. S. HAMM AND F. A. SCHUETZ.

LANTERN.

APPLICATION FILED JULY 8; 1919.

Patented May 9, 1922.

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UNITED STATES PATENT DFFIQE.

WILLIAM S. HAMM, OF HUBBARD WOODS, AND FRANK A.

SCI-IUETZ, OF CHICAGO,

ILLINOIS, ASSIGNORS TO THE ADAMS & WESTLAKE COMPANY, A CORPORATIGN OFILLINOIS.

LANTERN.

Specification of Letters Patent.

Patented May 9, 1922.

Application filed July 8, 1919. Serial No. 309,334.

To all whom may concern.

Be it known that we, lVILLi'AM S. I-lann and FRANK A. SCHUETZ, citizensof the United States of America, and residents, respectively, of Hubbardl Voods, county of Cook, State of Illinois, and Chicago, county of Cook,State of Illinois, have jointly invented certain new and usefulImprovements in Lanterns, of which the following is a specification andwhich are illustrated in the accompanying drawings, forming a partthereof.

The invention relates to lanterns especially adapted for use bytrainmen. Lanterns for this purpose must be dependable under the mosttrying conditions known, since in addition to withstanding all degreesofv air velocity they must remain lighted throughout signals of variouskinds and in all positions.

In the past the only lanterns successful in this service have been thoseburning signal oil. A lantern which would burn kerosene and givereliable service for trainmen has not been produced prior to the presentinvention, though that disclosed in United States Patent No. 1,341,122,granted to us May 25th, 1920, for lantern burners, successfullywithstands many of the adverse conditions of the service.

The object of: the present invention is the provision of a lantern whichwill burn kerosene and give reliable service when in use by trainmen.

An embodiment of the invention is disclosed in the accompanyingdrawings,in which Fig. 1 is an elevation, partly in section; and

Fig. 2 is a section on the line 2-2 F i 1.

s shown the lantern comprises a base 10, containing the font and burner30, and a guard frame 11 which also supports the lantern top. The topcomprises a dome 12, having a breast 13 hinged to the guard frame, as at14, and provided with a latch, as 15, to prevent motion about the hinge.

The globe 16, seated in the base, is held in place by the globe-holder17 slidable in the dome and pressed downwardly against the top of theglobe by a spring 18 seated on an annular flange 19 which looselyengages the side walls of the dome. To limit the same general type asthat shown in the part out to lV. S. Hamm, of July 27, 1909, Reissue No.12,995, but is longer, depending considerably below the level of themargin of the breast, the globe being correspond ingly shortened, and ofgreater diameter at its upper end. The downward flare of the holderbrings its lower portion over the upper end of the globe.

The globe-holder is circular and comprises a downwardly and outwardlyflaring portion 21, providing a restricted opening 22 into the dome; ashort vertical portion 21' which enters within the dome when the top isclosed; a further flaring portion to which the numeral '17 is applied; avertical por tion 23; a flaring bottom 24; an instanding annular flange25; and an upstanding hield ring 26 at the inner margin of this flange.A pair of baiiie plates are shown at 27 as crossing the upper end of theglobe-holder, as is usual in lanterns of this general type.

For the admission of air the lower vertical portion of the globe-holderis provided with perforations at 28, located preferably below the planeof the bottom edge of the breast 13. A eat for the globe-holder upon theglobe is provided by the annular flange 25, which is shown as spacedabove the lower edge of the portion 24 of the globe-holder. The top ofshield ring 26 stands level with or above the highest perforations.Being spaced apart from the perforated wall the shield forms a pocketinto which the air enters and which is sufficiently commodious to causea breaking up, diffusion and checking of the currents. As a result thereis always a substantial volume of fresh air within the chamber enclosedby the globe-holder which will feed the flame whenever conditions existwhich cause a downward movement of vapors within the globe. Thecomparatively quiet tate of this volume of air prevents materialdisturbance of the flame.

The burner, designated generally by the reference numeral 30, may be ofany desired type without departing from the scope of the claims, thoughthe form disclosed in Patent No. 1,341,122, granted to us May 25th,1920, for lantern burners, has been found in practice to produce themost satisfactory results when used in connection with the lanternherein described.

We claim as our invention 1. In lantern, in combination, a dome, abreast projecting outwardly from the dome, a wall extending downwardlyfrom the breast and having air ports bolowthe margin thereof, and anupwardly contracting shield ring offset inwardly from the wall andfacing the ports therein, the upper margin of the shield beingapproximately 011 a level with the upper portions of said ports.

2. A lantern comprising a base, a globe and a dome and having airinduction ports in the base and above the globe, and a shield within thelantern body and facing the upper ports, the upper margin of the hieldbeing approximately on a level with the upper portions of such ports.

A lantern comprising a base, a globe and a dome andhaving air inductionports in the base and above the globe, an annular flange extendinginwardly below the lastnamed ports, and a shield extending upwardly fromthe inner margin of the flange and terminating approximately on a levelwith the upper portions of said last-named ports.

4. In a lantern, in combination, a dome, a globe-holder within andextending below the dome and having perforations in its lower portion,an annular flange extending inwardly from the lower portion of theglobeholder for engagement with the upper edge of the globe, and anupstanding shield ring secured to the inner edge of said annular ring,the .upper margin of the shield being approximately on a level with theupper portion of the named perforations.

5. In a lantern, in combination, a dome, a globe-holder in said domehaving a restricted opening into said dome and increasing in diameterdownwardly to a size substantially equal to the outside diameter of thetop of the globe and having a vertical portion of such size providedwith perforations, an annular ring secured at its outer edge to thelower portion of aid vertical portion of the globe-holder, and a shieldringsecured to the inner edge of the annular ring providing an annularspace between said per-- forations and said shield ring, the uppermargin of such ring being approximately on a level with the upperportion of said perforations.

6. A signal lantern adapted for use of a light fuel oil such askerosene, comprising, in combination, a base having air induction portopen to the atmosphere, a burner for light fuel such as keresene, aglobe inclosing the burner and having an open upper end of substantiallygreater cross-sectional area than is necessary to dischargetheret-hrough the vapors of combustion. a dome covering the upper end oftheglobe and having an annular series of air induction ports in itsbase, and a shield plate facing the lastnamed ports.

WILLIAM S. HAMM.

FRANK A. SCHUETZ.

